title: Source Code Directory Structure sidebar_position: 5

Linkis hierarchical directory structure explanation, if you want to detail Linkis, please check Linkis related architecture design documents

├─assembly
├─bin
├─conf
├─core //Core abstraction, which contains all common modules
 ├─cloudModule //Modules that must be introduced by microservices, embedded Jetty + WebSocket + SpringBoot + Jersey
 ├─cloudMybatis //Mybatis module of SpringCloud
 ├─cloudProtocol //General protocol, such as RPC communication between Entrance and Engine
 ├─cloudRPC //RPC module, complex two-way communication based on Feign implementation
 ├─common //Common module, built-in many common tools
 ├─httpclient //Java SDK top-level interface
 └─scheduler //General scheduling module
├─db //Database information
├─docs //All documents
├─eurekaServer //Eureka module
├─extensions //plugin
 └─spark-excel //spark supports excel to DF/DF to excel plug-in
├─gateway //Gateway module
 ├─core //Gateway core implementation, including authentication/analysis/routing of front-end interfaces
 ├─gateway-httpclient-support //gateway support for Java SDK
 ├─gateway-ujes-support //Analysis and routing support for UJES interface
 └─springcloudgateway //Introduce spring cloud gateway, front-end requests are intercepted from here
├─publicService //public service
 ├─application //application module
 ├─bin
 ├─conf
 ├─configuration //Parameter module, get the engine parameters from here
 ├─database //Provide Hive metadata query service
 ├─query //Provide Job Manager and Job History
 ├─udf //UDF module
 ├─variable //User-defined variable module
 └─workspace //Workspace module, manage user scripts
├─resourceManager //Resource management service
 ├─resourcemanagerclient //resource management client
 ├─resourcemanagercommon //Common module
 └─resourcemanagerserver //Resource management server
├─storage //Unified storage service
 ├─pesIO //Remote storage service
  ├─io-engine //The engine side of remote storage, which actually accesses the bottom storage side
  ├─io-enginemanager //engineManger for remote storage
  └─io-entrance //Request entry for remote storage
 └─storage //Unified external interface for unified storage
└─ujes //Unified operation execution service
 ├─client //Java SDK, users can directly access Linkis through Client
 ├─definedEngines //Implemented engines
  ├─hive //Hive engine
   ├─engine //The engine execution end of the actual docking with the underlying Hive
   ├─enginemanager
   └─entrance
  ├─pipeline //Import and export engine for mutual conduction between storage systems
   ├─engine
   ├─enginemanager
   └─entrance
  ├─python //stand-alone Python engine
   ├─engine //The engine execution end that actually docks with the underlying Python
   ├─enginemanager
   └─entrance
  ├─spark //spark engine
   ├─engine //The actual connection to the engine execution end of the underlying Spark
   ├─enginemanager
   └─entrance
  └─tispark //TiSpark engine, actually docking with TiSpark engine
 ├─engine //General low-level engine module
 ├─enginemanager //General low-level enginemanager module
 ├─entrance //General low-level entrance module
 └─entranceclient //Simplified version of entrance